What is the estimated weight of the gut microbiomes of all people and animals on Earth?

Microbial Life in Earth's Crust

Interactive Video
•
Biology, Science
•
9th - 12th Grade
•
Hard

Emma Peterson
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
10,000 tons
1 million tons
100,000 tons
2 billion tons
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How deep have microbes been found within the Earth's crust?
1 kilometer
3 kilometers
5 kilometers
10 kilometers
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What analogy is used to explain the dormancy of deep subsurface microbes?
A tree in winter
A sleeping bear
A hibernating frog
A dormant volcano
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a chemolithoautotroph?
A microbe that uses sunlight to make food
A microbe that uses chemicals from rocks to make food
A microbe that feeds on other microbes
A microbe that lives in water
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What waste product do chemolithoautotrophs often produce?
Minerals like rust or pyrite
Carbon dioxide
Methane
Oxygen
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What natural feature in Costa Rica was studied to understand subsurface microbial activity?
Rainforests
Volcanoes
Beaches
Mountains
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the hypothesis about carbon dioxide in Costa Rican hot springs?
It was being released into the atmosphere
It was being filtered out by something underground
It was dissolving in water
It was causing volcanic eruptions
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